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Controversy Won 2010–2018 Politics, 2010s

The Desert Discovery Center Fight, 2010–2018: How Scottsdale Voters Took Control of the Preserve

The Desert Discovery Center had been on Scottsdale's drawing boards since the 1980s. In 2016 the council hired a nonprofit led by former Mayor Sam Campana to plan it near the Preserve's Gateway trailhead and voted 4 to 3 not to send a public-vote requirement toward the ballot. Opponents organized, gathered about 37,600 signatures, and in 2018 voters passed Proposition 420 with 71 percent, though the pamphlet had printed three arguments against it for every one in favor. The council killed the project five weeks later.

Illustration for The Desert Discovery Center fight: a thirty-year plan for a desert nature center at the preserve's front door, a council that would not send it to the voters, and a petition that wrote a public vote into the charter

The 30-second version

  • City plans for a desert nature center go back to the 1980s; a 2007 master plan put a visitor center at the Gateway trailhead, and a 2010 city study priced the project at up to $74 million.
  • In January 2016 the council paid a nonprofit, Desert Discovery Center Scottsdale, about $1.7 million in bed-tax money to plan it; former Mayor Sam Campana was its executive director.
  • On September 19, 2016 the council voted 4 to 3 to take no action on a citizen petition for a public vote. Klapp, Korte, Milhaven and Smith were the majority; Mayor Lane, Vice Mayor Kathy Littlefield and Guy Phillips dissented.
  • Protect Our Preserve and NoDDC filed about 37,600 signatures in July 2018 for Proposition 420. The pamphlet carried 51 arguments against and 17 for; voters passed it 78,946 to 31,847.
  • On December 11, 2018 the council voted 7 to 0 to end the project, now called Desert EDGE.

The question

Should the city build a desert education and visitor center inside the McDowell Sonoran Preserve on the council's authority, or should any building in the Preserve, and any spending of Preserve taxes beyond land and trails, need a public vote?

The sides

Protect Our Preserve and NoDDC

Voters taxed themselves to keep the Preserve natural. A $68 million attraction near the Gateway trailhead, planned by a council-funded nonprofit largely out of public view, should not be built there unless the people who paid for the land agreed.

“We now have a chance to decide who should control development in our Preserve, four members of the City Council or citizens.” Protect Our Preserve, Howard Myers, president, argument for Proposition 420, city publicity pamphlet, November 6, 2018

Mary Manross, Bob Littlefield, Kathy Littlefield, Guy Phillips, Solange Whitehead

The Desert Discovery Center's backers

The center had been in the city's plans since 2007 and would teach visitors about the desert without commercializing it. The charter amendment went far beyond one building, tying the city's hands over the Preserve and handing power to an appointed commission.

“The proposed educational center is no more commercial than a museum or library.” Councilwoman Linda Milhaven, argument against Proposition 420, city publicity pamphlet, November 6, 2018

Linda Milhaven, Virginia Korte, Sam Kathryn Campana

How it ended

Voters approved Proposition 420 on November 6, 2018 with 71 percent, adding to the charter that no Preserve land may be altered from its natural state, beyond listed trail and trailhead work, and no Preserve tax money spent on anything but land, trails and debt, without a public vote. On December 11, 2018 the council voted 7 to 0 to end the Desert EDGE project.

What holds it: Law & contracts November 6, 2018

The short version

For three decades Scottsdale planned a nature center at the front door of its desert. A 2007 master plan put a visitor center at the Gateway trailhead of the McDowell Sonoran Preserve, and a 2010 city study priced the full Desert Discovery Center at up to $74 million. In 2016 the council hired a nonprofit led by former Mayor Sam Campana to plan it, with hotel-tax money, and refused, 4 to 3, to start toward a public vote.

Residents who had helped buy the Preserve organized against it. In July 2018 they filed about 37,600 signatures for a charter amendment requiring a public vote for any building in the Preserve. The city’s pamphlet printed 51 arguments against it and 17 for; on November 6, 2018 voters approved it with 71 percent. Five weeks later the council ended the project, 7 to 0.

The plan

City staff traced the idea to the mid-1980s, when Pinnacle Peak was the site under discussion; by the late 1990s it had moved to the Gateway. The 2010 Phase II study, paid for with Preserve tax money, described “roughly 70,000 square feet, a variety of buildings” at up to $74 million, about $62 million of it for buildings and exhibits. After it, the Preserve Commission and the Tourism Development Commission both recommended no more Preserve money, and in 2012 the city sought an operator and got no responses.

Supporters regrouped as a nonprofit, Desert Discovery Center Scottsdale, with a board that included former city manager Dick Bowers and former Preserve commissioners, and Campana as executive director. On January 11, 2016 the council contracted with it, the only bidder, for a business plan and design: $1,696,900 in bed-tax money. Councilwoman Kathy Littlefield had warned the year before: “74 million, I think is a killer. $3 to $5 million, I don’t think anybody would have cared.”

The council says no to a vote

Opponents organized that summer. NoDDC, founded by a computer programmer named Jason Alexander, objected to “how this project has been driven forward from a group of special interests largely out of the public eye.” Protect Our Preserve, led by former Preserve commissioner Howard Myers, put it more simply: “It’s the people’s preserve.” On September 19, 2016 they brought a citizen petition asking the council to require a public vote for any building in the Preserve beyond trails and trailheads. Councilman Guy Phillips moved to start a charter amendment; Mayor Jim Lane moved to draft one too, and got no second. The council voted 4 to 3 to take no action, with Suzanne Klapp, Virginia Korte, Linda Milhaven and David Smith in the majority and Lane, Littlefield and Phillips dissenting.

By September 2017 the project, renamed Desert EDGE, had shrunk to about 47,600 square feet and $61 million to $68 million, and the room had turned bitter. “I’ve never had the kind of reaction and the kind of vitriol and kinds of devastating division that we have with this now,” Lane said. Milhaven gave the opponents a challenge: “All you need to do is go get the signatures.” In November the council agreed to wait for them.

Proposition 420

They got them: about 37,600 filed on July 2, 2018, and more than 30,000 found valid. The measure barred altering any Preserve land “from its natural state unless specifically authorized by a majority of the votes cast,” beyond new trails approved by the Preserve Commission and listed trail and trailhead work, and limited Preserve tax money to land, trails and debt.

The civic establishment lined up against it. Milhaven: “The proposed Charter amendment goes beyond the question of an educational center and restricts our ability to protect our Preserve.” Korte, a founder of the Preserve campaign in 1993: “I helped start our McDowell Sonoran Preserve decades ago and worked on all 5 campaigns.” Former city manager Jan Dolan chaired the opposing committee, and the Scottsdale Area Association of REALTORS objected that the amendment empowered the Preserve Commission, “a group of individuals who are not duly elected to office by the citizens of Scottsdale,” and that Preserve tax money could not be used to restore the land “following a flood, a wildfire … without first being approved by a public vote.”

The other side had the electorate. Former Mayor Mary Manross, mayor during the 2004 Preserve tax vote, signed for it, as did both Littlefields, Phillips, Councilwoman Klapp, candidate Solange Whitehead, the Sierra Club and the Coalition of Greater Scottsdale. On November 6, 2018 voters approved it, 78,946 to 31,847. On December 11 the council adopted Resolution 11339, on Korte’s motion and Lane’s second, ending the Desert EDGE project “or other similar projects, such as a nature education center, in the Preserve,” 7 to 0.

The fight settled who decides what happens in the Preserve: the voters, not the council. Whitehead, who the Scottsdale Progress reported was inspired to run by it, was elected that day. The Preserve guide and Prop 420 entry carry the story on, and the 2010s politics chapter sets it beside the decade’s other votes.

Who was in it

  • Howard Myers President of Protect Our Preserve; former Preserve Commission member 2016–2018
  • Jason Alexander Founder and director of NoDDC 2016–2018
  • Sam Kathryn Campana Former mayor; executive director of Desert Discovery Center Scottsdale, Inc. 2015–2018
  • Christine Kovach Chair of Desert Discovery Center Scottsdale, Inc.; former Preserve Commission member 2015–2018
  • Linda Milhaven Councilwoman who moved the 2016 no-action vote and argued against Proposition 420 council 2011–2023
  • Virginia Korte Councilwoman, a founder of the Preserve campaign, who argued against Proposition 420 and moved to end the project council 2013–2021
  • Jim Lane Mayor, who moved in 2016 to draft a public-vote charter amendment mayor 2009–2021
  • Kathy Littlefield Councilwoman who argued for a public vote throughout council 2015–
  • Guy Phillips Councilman who moved a charter amendment and moratorium in 2016 council 2013–2021
  • Jan Dolan Former city manager who chaired the committee against Proposition 420 2018

By the numbers

up to $74 million

2010 cost estimate

about 37,600

Signatures filed

71 percent

Prop 420 yes

7–0

Council vote to end it

What the record doesn’t show

  • The council's vote on the January 11, 2016 contract with Desert Discovery Center Scottsdale. · Happened off the books
  • What each side spent. The only figures, about $108,000 for the yes committee and about $119,000 for the no committee including $47,409 from the National Association of Realtors, come from one newspaper; the committees' filings are with the City Clerk.
  • The outcome of the 2017 lawsuit by NoDDC and Protect Our Preserve, and the founding dates of both groups.
  • A claim in the yes campaign's pamphlet argument that a councilwoman called its members terrorists has no transcript or news source and is left out.
  • Joan Fudala, the city historian whose work this site cites elsewhere, sat on the Desert Discovery Center Scottsdale board and argued against Proposition 420; her accounts of the fight are a participant's, and this page does not rely on them.

The timeline

  1. 2007

    The council approves a master site plan for the Gateway area that includes a desert discovery center.

  2. 2010

    A city Phase II study, paid for with Preserve tax money, puts the cost at up to $74 million for about 70,000 square feet of buildings. The Preserve Commission later recommends no more Preserve money for the project.

  3. 2012

    The city seeks an operator; no one responds.

  4. 2016

    In January the council contracts with Desert Discovery Center Scottsdale, the only bidder, for about $1.7 million in bed-tax money. On September 19 it votes 4 to 3 to take no action on a citizen petition for a public vote.

  5. 2017

    The project is renamed Desert EDGE, about 47,600 square feet at $61 million to $68 million. In September Lane says he has never seen such 'vitriol'; on November 6 the council agrees to wait for the citizens' petition. NoDDC and Protect Our Preserve sue the city.

  6. 2018

    About 37,600 signatures are filed on July 2. On November 6 voters approve Proposition 420. On December 11 the council ends the project, 7 to 0.

Questions people actually ask

What was the Desert Discovery Center?

A proposed desert education and visitor center at the McDowell Sonoran Preserve's Gateway trailhead, in city plans since the 1980s. By 2017, renamed Desert EDGE, it was a $61 million to $68 million complex of about 47,600 square feet with exhibits and a cafe, planned by a nonprofit the city paid with bed-tax money.

What did Proposition 420 do?

It amended the city charter so that no Preserve land may be altered from its natural state, beyond new trails approved by the Preserve Commission and listed trail and trailhead work, and no Preserve tax money may be spent on anything but land, those trails and debt, without a public vote. Voters approved it on November 6, 2018, 78,946 to 31,847.

Did Proposition 420 kill the Desert Discovery Center?

Not by name. It required a public vote for any such building. On December 11, 2018 the council voted 7 to 0 to end the project and any similar nature center in the Preserve.

Who opposed Proposition 420?

Councilwomen Linda Milhaven and Virginia Korte, former city managers Jan Dolan and Dick Bowers, the Desert Discovery Center's board, former Preserve leaders including Art DeCabooter, and the Scottsdale Area Association of REALTORS, which said it gave power to 'a group of individuals who are not duly elected.'

Sources

Vernacular & LexiconProp 420The PreserveThe Preserve taxCouncil-manager governmentTrailheadCharter city and home rulePinnacle Peak

Facts checked: October 23, 2026 • Written by • Every side is given in its own words from the public record; the site takes no side. Corrections are welcome.