Spectrum Equity is making a big bet on AllTrails, that app for outdoorsy folk. : The app for hiking enthusiasts just secured a big round of capital that will help it map more trails worldwide. AllTrails has raised $75 million, led by Spectrum Equity, which has taken a majority stake in the company in the process. Founded in 2010, AllTrails raised a small amount of capital years ago from investors, including 2020 Ventures and 500 Startups. It was also part of AngelPad’s inaugural accelerator class. This is its first sizeable round of equity financing.